508 Mr. G. Meade-Waldo's revision of the species of 



margine tegulariim, axillis, segmenti mediani lateribus, tergitibiis 1-4 

 fasciis apicalibus (quarum 1-2 lateribus dilatae siinf), luteis ; pedibus 

 (coxis trochanteribusque exceptis) flavis, tarsis subferrugineis ; 

 mandibulis ferrugineis. Alis subfuscis. Long. 10 mm. 



Black, dusted with a griseous pubescence. Clypeus as broad 

 as long, pyriform, deeply emarginate at apex, the lateral teeth 

 acute. Prothorax truncate anteriorly. Scutellum slightly raised, 

 postscutellum with short lateral tubercles, truncate ; surface of 

 median segment concave. 



Abdomen with first segment short and broad, the second as broad 

 as long. Head and thorax coarsely punctured, the clypeus with 

 distinct longitudinal striation ; abdomen finely punctured. 



Wings subfuscous, rather darker along costa. 



Length 10 mm. 6 S (S- 



Nyasaland : Mlanje, 2300 ft., Oct. 1913 {S. A. Neave). 



This species is dedicated to H.M.S. Arethusa, in recogni- 

 tion of the conspicuous part played by her in the naval 

 engagement in the North Sea. 



0. (Lionotus) karibae, sp. n. 



?. Niger, clypeo tricolorato ; clypeo basi, scapo infra, macula 

 supraclypeali, sinu oculorum infra, macula post oculos, pronoti 

 margine antico, tergitibus 1-3 fasciis apicalibus, prima lateribus 

 dilatata, pedibus plerumque, luteis. Mandibulis, clypeo apice, 

 tegulisque, ferrugineis. Alis hyalinis, cellula radiali fusca. Long. 

 8 mm. 



The whole insect clothed with a short, silver pubescence. Clypeus 

 as broad as long, convex, the apex with a very shallow emargina- 

 tion. Anterior margin of median segment truncate, the lateral 

 angles acute. Scutellum raised, slightly convex, postscutellum with 

 the lateral teeth inconspicuous ; median segment rounded laterally. 

 First segment of abdomen short, broad. Head and tliorax with 

 coarse, deep, punctures, clypeus with the punctures well separated ; 

 abdomen more finely punctured. Wings hyaline extreme costa 

 and radial cell fuscous. Second cubital cell nearly triangular, i. e. 

 second abscissa of radius very short. 



Length 8 mm. 



cj only differs sexually, the clypeus yellow and more finely 

 punctured. 



A long series of ? $ and 2 ^ ,$. 



N. Rhodesia : Kariba Gorge and E. of Sijoba, vi. 1910 

 (0. C. Silverlock) $ c? (type); Broken Hill, ix. 1912 

 {F. V. Bruce Miller) ; Lonely Mine, x. 1913 {Dr. H, Swale) ; 



